Study on the corrosion properties of Ti41.4Zr28.52Cu6.44Nb8.0Be15.64 metallic glass-based composites in binary acid-salt solutions

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-02-10 DOI:10.1016/j.jallcom.2025.179133

Yujing Yang, Cuicui Zhuang, Xin Liu, Lei Chen, Yan Zhu, Xing Zhang, Mingqi Gao, He Li, Zhilin Shi, Shunxing Liang, JingWang Lv, Xiaoxu Liu, Mingzhen Ma

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引用次数: 0

Abstract

The present paper thoroughly evaluated the electrochemical and chemical corrosion behavior of Ti_41.4Zr_28.52Cu_6.44Nb_8.0Be_15.64 metallic glass-based composites in 0.5 mol/L H₂SO₄ + x mol/L NaCl acid-salt solutions with varying NaCl concentrations (x = 0.001, 0.01, 0.1, 0.2 and 0.3 mol/L). The results demonstrated that electrochemical corrosion of these composites was sensitive to the electrolyte composition. Corrosion current densities were consistently on the order of 10^-8A/cm², with pitting corrosion occuring only when NaCl concentration reached 0.2 mol/L or higher. Additionally, distinct morphologies of sample surfaces were observed after anodic polarization. As the NaCl concentration in the acid-salt solutions rose from 0.01 to 0.3 mol/L, the sample surfaces exhibited a progression from slight black corrosion spots to selective dissolution of the amorphous matrix, respectively. X-ray photoelectron spectroscopic investigations revealed the formation of various oxides on the sample surfaces, contributing to differences in corrosion properties. The chemical immersion testing further confirmed the corrosion properties of the amorphous composite alloys. The present study offers valuable insights and reference data for the aspect in engineering applications of the amorphous composite alloys.

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Ti41.4Zr28.52Cu6.44Nb8.0Be15.64金属玻璃基复合材料在二元酸盐溶液中的腐蚀性能研究

本文全面评价了Ti41.4Zr28.52Cu6.44Nb8.0Be15.64金属玻璃基复合材料在0.5 mol/L H2SO4 + x mol/L NaCl酸盐溶液中不同NaCl浓度（x = 0.001、0.01、0.1、0.2和0.3 mol/L）的电化学和化学腐蚀行为。结果表明，复合材料的电化学腐蚀对电解质组成敏感。腐蚀电流密度稳定在10 ~ 8 A/cm2量级，只有当NaCl浓度达到0.2 mol/L以上时才会发生点蚀。此外，阳极极化后的样品表面形貌也明显不同。当酸盐溶液中NaCl浓度从0.01 mol/L增加到0.3 mol/L时，样品表面呈现出由轻微的黑色腐蚀斑到非晶基体选择性溶解的过程。x射线光电子能谱研究表明，样品表面形成了各种氧化物，导致了腐蚀性能的差异。化学浸泡试验进一步证实了非晶复合合金的腐蚀性能。本研究为非晶复合合金在工程应用方面提供了有价值的见解和参考数据。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.